b. Aircraft Documents. Lessor shall maintain and preserve, or cause to be maintained
and preserved, in the English language, all Aircraft Documents required by the FAA, the Aircraft
manufacturer and the manufacturers of all component parts thereof, and in a current, accurate, and
complete manner and shall be available at all reasonable times for examination and inspection by
Lessee. For purposes of this Agreement, “Aircraft Documents” means all records and documents (i)
required by the applicable law or any manufacturer’s warranty or any applicable maintenance service
plan to be maintained with respect to the Aircraft (ii) customarily maintained with respect to
aircraft of the same category and class as the Aircraft, or (iii) otherwise associated with the
Aircraft, including without limitation, flight records, maintenance and inspection records,
modification and repair records, overhaul records, historical records, manuals, logbooks,
authorizations, and drawings. Notwithstanding the foregoing, at any times that Aircraft is in the
possession, command and control of Lessee, Lessee shall complete and maintain all Aircraft
Documents as required by applicable laws and regulations in connection with such lease and use of
the Aircraft by Lessee. All Aircraft Documents shall remain the sole property of Lessor.

     c. No Alterations. Lessee shall not alter, modify, or make additions or improvements
to the Aircraft without the prior written permission of Lessor, and any such alterations,
modifications, additions or improvements shall immediately become the property of Lessor.